Vegan alternative to buttermilk for baking?
I'm planning to bake a cake for a friend who is not vegan, but who can't eat most forms of dairy besides butter. I'm thinking of making Bravetart's white mountain layer cake (https://www.saveur.com...), but I would need to replace the buttermilk with something dairy-free. Based on this article which recommends kefir as one of the best buttermilk alternatives, I'm thinking vegan kefir could be a good option! Thoughts? https://www.seriouseats...
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I wouldn’t use vegan kefeir because its not easy to find and will likely be nut based or coconut based which may be too “dense” in a delicate cake